VCO
1 Follower
Recent papers in VCO
The PLL is a feedback system used to generate clock signal in microprocessors, and frequency multiplication (FM) etc., The PLL consists of several components such as Phase frequency detector (PFD), Charge pump (CP), low pass filter (LPF),... more
Designing of an analog circuit satisfying the design constraints for desired application is a challenging job. Phase Lock Loop (PLL) is an important analog circuit used in various communication applications such as frequency synthesizer,... more
This paper presents a new technique to improve frequency performance of CMOS ring oscillator. It is based on the addition of MOS transistor to boost switching speed of the oscillator delay cell. The method can be used for simple and... more
This paper presents an improved design of voltage controlled oscillator (VCO) utilizing the three differential cell CMOS inverters for forming the ring oscillator. The differential cell reduces the power supply fluctuations impact... more
In this paper, a 4.2–5.4 GHz, −Gm LC voltage controlled oscillator (VCO) for IEEE 802.11a standard is presented. The circuit is designed with AMS 0.35 μm SiGe BiCMOS process that includes high-speed SiGe Heterojunction Bipolar Transistors... more
This letter presents a low phase noise triple-band voltage-controlled oscillator (VCO). The designed circuit consists of a dual-resonance LC-tank VCO and a single-resonance LC-tank VCO. The two sub-VCOs are coupled via transformers and... more
In conventional receivers, carrier recovery and timing recovery are performed in the analog domain by controlling the frequency and phase of voltage controlled oscillators (VCO) in their respective phase locked loop (PLL). When the... more
This paper proposes a dual-conduction class-C CMOS VCO for ultra-low supply voltages. Two cross-coupled NMOS pairs with different bias points are employed, which realize impulselike current waveform to improve the phase noise in the low... more
In conventional receivers, carrier recovery and timing recovery are performed in the analog domain by controlling the frequency and phase of voltage controlled oscillators (VCO) in their respective phase locked loop (PLL). When the... more
Page 1. 444 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 27. NO. 3. MARCH 1992 A 1.8-GHz Monolithic LC Voltage-Controlled Oscillator Nhat M. Nguyen, Student Member, IEEE, and Robert G. Meyer, Fellow, IEEE Abstract ...
— A low phase noise, power efficient VCO using UMC 0.18µm CMOS technology has been proposed in this paper. The proposed VCO has a tuning range of 9.71GHz to 9.9GHz, with a phase noise of-79.88 dBc/Hz @ 600kHz offset. The Vtune ranging... more